// @copyright 2017-2018 zzu_softboy <zzu_softboy@163.com>
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Created by softboy on 2017/12/24.


#ifndef PDK_M_BASE_LANG_INTERNAL_STRING_HELPER_H
#define PDK_M_BASE_LANG_INTERNAL_STRING_HELPER_H

namespace pdk {
namespace lang {

class Character;

namespace internal {

char32_t fold_case(const char16_t *ch, const char16_t *start) noexcept;
char32_t fold_case(char32_t ch, char32_t &last) noexcept;
char16_t fold_case(char16_t ch) noexcept;
Character fold_case(Character ch) noexcept;

} // internal
} // lang
} // pdk

#endif // PDK_M_BASE_LANG_INTERNAL_STRING_HELPER_H
